This test checks to see how well your kidneys are working. Creatinine is a normal waste product. If it builds up in your body, it could be a sign of kidney disease.

This test looks at how well your kidneys are working and how well blood is flowing to them.

This test measures the amount of creatine kinase (CK), an enzyme, in your blood. The test can help your healthcare provider find out whether you're having a heart attack.

This test measures the amount of the enzyme creatine kinase in your blood. A certain form of this enzyme can help find out whether you're having a heart attack.

This test may help in the diagnosis of 2 fairly uncommon medical conditions: Cushing syndrome and Addison disease. The test also screens for other diseases that affect your pituitary and adrenal glands.

This urine test measure the level of the hormone cortisol, which helps your body manage stress.

This test is a screening panel of 14 tests that look at your metabolism. The tests help see how well your liver and kidneys are working.

This test measures the amount of copper-containing protein in the blood. It can help diagnose copper disorders like Wilson disease.

This test looks at the ratio of 2 important types of white blood cells in your blood. If you have HIV, the results can help your health care provider know how strong your immune system is.

This blood test checks for the amino acid citrulline, a marker for rheumatoid arthritis.